How To Apply Roofing Cement

Exact specifications vary but most concrete roofs are several inches thick.

How to apply roofing cement.

For sealing down shingles or flashing use around a quarter to half inch thick layer of roofing cement. Fill small holes and cracks with roof cement. Don t thin the cement. A solid slab of concrete capping the top of your house.

Roofing cement will jump out of the can and get all over you. Apply roofing cement and secure the second layer to the roof. Repeat this on both sides of the roof. If you re using.

For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. For wet formula applications you may need to start with a eight inch thick layer and then add additional layers several hours later. Position the first sheet tack the top every 2 feet and nail the rake and. Before applying plastic roofing cement the surface must be clean and dry.

How to use roof cement. Using the exposed nail method snap a chalk line 35 inches above the eave. When nailing the second layer into the roof make sure you nail the first and second layers together. Use your trowel and putty knife for cracks or holes.

This surface preparation ensures that the cement has the ideal surface to bond to. This video may help to get started working with roofing cement. Roof cement comes ready made in large tins. How to use roof cement.

It s not how much you use it s where you put it. There are several different grades that correspond to the work you are doing and the. Use the chalk line to snap a straight line vertically every 6 inches. Old patches of roof cement should be removed and rust should be cleaned from metal surfaces.

Install the rest of the. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles. Concrete masonry and other absorbent surfaces may need a coat of primer before application. Use formulas designed to.

How to apply roof cement. Every 5 inches make a new mark until you get to the rop of the roof. Tack the upper edge of the second strip. Work it into the hole or crack with the trowel or putty knife.

Snap a chalk line on the top of the first piece 2 inches below the edge. For roof blisters bust the blister open and make sure it s dry first before applying the cement. Clean dust dirt and debris from the area to be patched. Repeat this process for the rest of the roof.

Work in dry weather if possible.